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java - Why method `close` in StringWriter, PrintWriter has no effect?

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java - Why method `close` in StringWriter, PrintWriter has no effect?

Why in this classes (StringWriter, PrintWriter) method close has no effect as it mentioned in javadoc?

I understand that the simple not implemented I suppose. But why?

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StringWriter doesnt have any resources on the file system unlike PrintWriter. It's close method just exists to satisfy the Closable interface.


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